Sketch showing possible modification of plan for elevated canal & locks at Minneapolis, Minn. / Francis M. Henry, C.E.ID Number: G4144 .M5:2S15 1926 .H4 6F 1 of 2 media  |
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Sketch showing possible modification of plan for elevated canal & locks at Minneapolis, Minn. / Francis M. Henry, C.E.ID Number: G4144 .M5:2S15 1926 .H4 6F 1 of 2 media |
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